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United States Patent | 5,714,040 |
Poy ,   et al. | February 3, 1998 |
There is disclosed a method for recovering fiber from printed wastepaper by loading the wastepaper and water into a continuous batch fiber recovery apparatus. The wastepaper and water are agitated within the apparatus to form a pulp fiber slurry while introducing a deinking/agglomerating composition at predetermined time intervals to cause the ink particles associated with the printed wastepaper to separate from the paper and agglomerate to form large ink particles. The agglomerated ink particles are then removed from the pulp fiber slurry using separation techniques.
Inventors: | Poy; Russell Harris (Destrehan, LA); Kulakowski; Christopher Mark (Violet, LA); Mulligan; Daniel Brian (Woodinville, WA) |
Assignee: | Pellerin Milnor Corporation () |
Appl. No.: | 601614 |
Filed: | February 14, 1996 |
Current U.S. Class: | 162/4; 162/5; 162/55 |
Intern'l Class: | D21C 005/02 |
Field of Search: | 162/4,5,8,55 |
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Article entitled "Laundering Recovered Paper: A Different Way"/Progress in Paper Recycling, by Daniel B. Mulligan, Feb. 1, 1995. Article entitled "Laundry Recycling System Shows Promise for Hard-to-Handle Grades"/Pulp & Paper, by Kelly H. Ferguson, Feb. 1, 1995. Brochure entitled "Ahlscreen Products--MODUScreen for Recycled Fiber Pulp", by A. Ahlstrom Corporation. Brochure entitled "archimedai Heavy-duty Washing system" by Voss. Brochure entitled "CLEANPAC 270--A unique cleaner concept exclusively used in deinking systems" by Celleco Hedemora. Brochure covering "Continuous Batch Fiber Recovery system, manufactured by Pellerin Milnor Corporation". Brochure covering "Ahlcleaner RB77 or RB87", available from Ahlstrom Kamyr, Inc. Brochure providing an example of a "MODUScreen", available from Alhstrom Kamyr, Inc., (not enclosed). |